Metal lathing



NITED STATES PATENT OEEICE.

OYRUS B. SILL, OF YOUNGSTOIVN, OHIO.

METAL LATHING.

SPECIFICATION forming part of Letters Patent No. 462,333, dated November 3, 1891.

Application led April 6, 1 8 91.

Serial No. 387,784. (No model.)

1"@ all whom it may concern:

Be it known that I, CYRUS B. SILL, ot Youngstown, in the county ot' Mahoning and State of Ohio, have invented certain new and useful Improvements in Metal Lathing; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in metal lathing; and it consists in certain features of construction and in combination of parts hereinafter described, and pointed out in theclaim.

In the accompanying drawings, Figure l is a bottom plan showing my improved metal lathing in position on a ceiling. Figs. 2, 3, and 4 are edge views in detail. Fig. 5 is a view in perspective. Fig. 6 is a plan showing a sheet of metal slitted asin carrying out my invention and before the sections between the slits have been bent, crimped, or corrugated.

In carrying out my invention, first, a thin sheet of metal, usually of iron, and this may be of the cheaper grades, is slitted, for instance, as shown at ct a, Fig. G. These slits are usually, say, from one and a quarter to a half inch apart, more or less, according to circumstances. The slits are usually three or four inches long; but the length of the slits is not material. Alternate sections between the dilt'erent slits are bent upward and the intermediate sections are bent downward, as shown more clearly in Fig. 5. Inbending the different sections, respectively, upward and downward, no particular form need be followed. For instance, the bent sections may extend in straight lines to an apex, (see top lines, Fig. 2,) or the sections may be bent up or down in curved lines, (see top lines in Fig. 3,) or the sections may be crimped or corrugated, (see lower lines, Figs. 2, 3 and 4;) but whatever the form of bending that is adopted the upward bending must take up or shorten the sheet to the same extent that the downward bending takes up or shortens the sheet. Otherwise the metal sheet as a whole would be curved or bent and could not be well applied to a flat surface.

The object of the sections being bentrespectively upward and downward is to form lateral openings between the next adjacent sections for the plaster to flow into and there by anchor itself to the lathing, and so long as this is done the form of bending up or down, by which such anchorage is accomplished, is not material. (See lateral openingin Fig. 5.)

The different forms of bending illustrated in Figs. 2, 3, and Lt are merely given as samples, and the variety may be extended indefinitely.

The sheets of metal, having been prepared in the manner aforesaid, are nailed or otherwise secured to the wall or ceiling that is desired to be plastered, and it is found that the plastering will adhere to such lathing with unusual rmness, and as such lathingisnot subject to shrink and swell, and as it is tire-proof, cheap, and durable, the advantages thereof will readily be appreciated. Such lathing can be applied to a wall or ceiling at a very dinary lathing.

My improved lath is usually made in a machine that slits and bends the sections, as required, and it matters not whether flat or corrugated sheets are run through the latir-machine. The sheets in either case come out of the machine prepared for lath.

Metal lathing comprising a sheet of metal having a series of slits therein, the sections between the dilierent slits being bent alternately upward and downward to form lateral spaces between next adjacent slits for anchoring the plastering, substantially as set forth.

In testimony whereof I sign this specification, in the presence ot two witnesses, this 11th day of March, 1891.

CYRUS B. SILL.

Witnesses:

XVILLIAM E. HUGHES, XV. R. DEEMER.

small cost as compared with applying the or- 

